公开(公告)号：US11998097B2

公开(公告)日：2024-06-04

申请号：US16644532

申请日：2018-08-28

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Wouter Hendrik Cornelis Spoorendonk ,  Ype Bernardus Brada ,  Nikolaj Vasiljevitsj Zjiroecha ,  Laurentine Costecalde

IPC: A45D2/00 ,  A45D1/04 ,  A45D1/08

CPC classification number: A45D2/001 ,  A45D1/04 ,  A45D1/08 ,  A45D2200/205

Abstract: In a hair styling device (20) having a two-dimensional array (21) of elements to bring hair at a styling temperature, the elements produce optical radiation energy. The elements may include one or more LEDs, and preferably a plurality of LEDs, in which case the LEDS are driven in clusters that may be of mutually different shapes and sizes. The hair styling device (20) further comprises sensors to obtain an areal light absorption measurement opposed to the two-dimensional array of elements, and a control unit for individually controlling the elements in dependence of the measurement. The sensors may be arranged for measuring an areal light density profile of a whole treatment area. The hair styling device may radiate hair from two sides, both of which includes an areal light absorption measurement. The sensors may include LEDs that do not produce light.